Bobbin thread won't catch

Is it actually bobbin thread that is "barfing?" Check closely. If it is under the fabric, it is most likely an upper thread problem. Remove all the thread from the machine. RAISE the presser foot and rethread from the beginning. Verify the thread path is correct. Set the upper tension to the midway point between high & low numbers--this may need to be tweaked for your particular machine. Verify the bobbin is loaded and threaded correctly.

Understanding Thread Tension Threads

Try installing a brand new needle.


Sewing machine won pick up bobbin thread hook timing fix

Sewing Machine Needle Not Catching Thread

Upper Thread will not pick up Bobbin Thread

Needle not picking up bobbin thread Threads Magazine Gatherings Forum...

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You can buy a copy of the manual. Ebay has one just now. http://www.ebay.com/itm/SINGER-SEWING-MACHINE-OWNERS-MANUAL-MODEL-3014-REPRINT-/380168853967

If you enter the model number and make into google, you will find other sources for manuals as well. Most Singers are not hard to thread, but some of the older ones have a few quirks. Get a manual so you can make sure you've got it right.

Sewing machine basics are whenever you have thread balling up, you stop, clean all lint from around the bobbin case and feed dogs, check all the guides to make sure none have any damage, put in a new needle, in case the old one has a small burr or other damage, and rethread the machine. Then turn the hand wheel slowly and watch the thread move, to see if it's catching anywhere.

Also check the upper thread tension, because if it is too tight or too loose it can cause a lot of problems. And lint buildup around the bobbin is often the cause of bobbin problems.

maybe your machine needs to go in for servicing just to be safe it is possible some thing simple

First you have to determine if the thread under the plate is the bobbin's thread... or just great loops from the upper thread.

Bobbin snarls are caused by the bobbin unspooling in the wrong direction.

Burrs and snags on the carrier.

Upper thread snarls in the bobbin area are "operator error" Typically, upper thread not threaded correctly (foot UP, buttercup)... or neglecting to put the presserfoot down while sewing.

Good luck.

OK, Nylon thread and vinyl fabric are difficult. Try this:
1. Be sure your machine is *very* clean - no leftovers from previous projects.
2. Take the bobbin receiver out (need a screwdriver to hold the release), clean it and all around it and re-insert. When you re-insert in this machine, hold the release lever with the screwdriver, push the receiver away from you (under the feed dogs) then bring it back toward you so it catches before you release the catch.
3. Use a stitch length just a bit longer than you 'normally' would - 3+ for vinyl.
4. Wind your nylon thread onto a bobbin *very* carefully. It's easy to get it caught so that it won't feed evenly.
5. Be sure your upper thread is in properly, and that it doesn't catch on anything.
6. Adjust your upper tension tighter than 'normal' to accomodate the slippery thread your're using - do this a little at a time, it's easy to miss the 'sweet spot' if you adjust too much.
7. Be sure to bring up your bobbin thread and hold both threads as you start to sew - hold them for 3-4 stitches.
8. Sew slow - this machine can go *really* fast, but don't let it on this project. It will catch better if you take it slow and easy.

Hope all this helps. If not, you'd probably better take it in for service.

1. Tension
   • Your sewing machine tension controls the rate at which the thread is fed through either the upper section of your machine or through the bobbin case. If your upper or bobbin threads aren't threading properly, sometimes adjusting the tension will correct this problem.
     
   Timing
   • Your sewing machine works by passing the upper thread through the needle of the sewing machine at precisely the same time the bobbin brings its thread to its uppermost position. If either the needle or the bobbin thread reach these positions too soon or too late, the threads won't interact and create the knots that make the seam. You can throw off your timing by sewing too many layers of fabric or hitting a pin with your needle. See you sewing machine repair facility to correct any timing issues.
     
   Thread
   • Thread can get snagged or caught in the upper section of your machine or on lint pieces in the lower bobbin section. If your threads aren't catching properly, you may be able to fix it by unthreading and rethreading both your upper thread and bobbin threads.
     

Brother machines are usually a very good brand. Sounds like you are having a small problem with threading..........I know how frustrating that can be!
Start over....totally from the beginning. First, clean the machine of all dust, I use a small paint brush to remove lint from the bobbin case area. Oil the machine. Remove all the thread from the machine, use a different bobbin and rewind it with new thread. Make sure the bobbin thread is the same as the thread you use to thread the upper needle with. Use a new needle that is the appropriate size for your sewing project. Check to make sure the feed dog is moving when you turn the wheel that raises the needle up and down. New needle, new bobbin, new thread......before you place the fabric under the presser foot (and with the presser foot raised), turn the wheel one complete rotation to allow the upper needle thread to catch the bobbin thread. Gently pull both threads out towards the back of the machine, making sure the bobbin thread is now coming up through the little hole in the feed dog plate. Place fabric under the presser foot, lower presser foot and as you slowly start to sew, make sure you have the bobbin thread pulled with slight tension out from the back of the needle. This will take up any slack in the bobbin thread and keep it from making a knotted mess. Good luck, I hope this helps.

a. needle in backwards
or
b. needle threaded wrong

Make sure your needle is in correctly. Check your threading again. If that does not work, remove throat plate, install new needle, turn hand wheel until needle is at its lowest position and observe if the hook is exactly behind the eye of the needle. If that is correct then you do not have threaded correctly. If it is not then the machine needs to be re-timed.